Q: What is the sum of all factors of the number 256,600,404 excluding 256,600,404?

A: 402,667,296

Why is 402,667,296 the sum of all factors of 256,600,404, excluding 256,600,404?

The factors of the number 256,600,404 are: 1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 116849, 233698, 350547, 467396, 701094, 1051641, 1402188, 2103282, 4206564, 7127789, 14255578, 21383367, 28511156, 42766734, 64150101, 85533468, 128300202, 256600404.

If you add them up, you will get the total of 256,600,806. Now subtract 256,600,404 to get 402,667,296